Toolbar configuration

Added several new configuration options for the toolbar via hashParams:
disableDownload=true: Hides the download button and disables the download functionality
disablePrinting=true: Hides the print button and disables printing functionality.
disableOpenFile=true: Hides the open file button.
disableSearch=true: Hides the search field and disables the search functionality. 
disableShowProperties=true: Hides the show properties button
disablePresentationMode=true: Hides the fullscreen button
disableViewBookmark=true: Hides the bookmark button.
forceHandTool=true: forces the handtool to be active and hides the handtool button.